CVE-2025-34114
HIGHOpenBlow - Client-Side Security Misconfiguration via Missing Critical HTTP Response Headers
Title source: llmDescription
A client-side security misconfiguration vulnerability exists in OpenBlow whistleblowing platform across multiple versions and default deployments, due to the absence of critical HTTP response headers including Content-Security-Policy, Referrer-Policy, Permissions-Policy, Cross-Origin-Embedder-Policy, and Cross-Origin-Resource-Policy. This omission weakens browser-level defenses and exposes users to cross-site scripting (XSS), clickjacking, and referer leakage. Although some instances attempt to enforce CSP via HTML <meta> tags, this method is ineffective, as modern browsers rely on header-based enforcement to reliably block inline scripts and untrusted resources.
References (3)
Core 3
Core References
Mailing List third-party-advisory
exploit
https://seclists.org/fulldisclosure/2025/Jul/13
Various Sources product
https://www.openblow.it
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/openblow-missing-critical-security-headers
Scores
CVSS v4
8.4
EPSS
0.0015
EPSS Percentile
4.9%
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-749
CWE-94
Status
published
Products (1)
Laser Romae s.r.l./OpenBlow
Published
Jul 25, 2025
Tracked Since
Feb 18, 2026